kfconcept
There are two types of FD mounts
FD/FL Breech-Mount (with a silver ring, you need to rotate the silver ring when attachment and removal), breech-lock mounts are identified by the silver ring
New-FD Bayonet Mount, bayonet mounts are identified by a red dot next to the lens release button
Here are the steps to install breech-mount version
Operating the adapter
Nikon Lens Mount Compatibility Nikon Z Adapter Compatibility Nikon F Mount Compatibility Nikon 1 Mount Compatibility Nikon F Adapter Lens Compatibility Lens Mounts For Nikon Cameras Lens Mounts For Nikon D3200 Nikon F Mount Lens Compatibility Nikon F Adapter Compatibility Sony 8 Cassette Adapter
German Lens Filter Mfg Cos Sony Alpha A7 Iii Canon Lens Adapter 7artisans Sony E Mount Used Sony Fe Mount Lenses Canon Fd Breech Lock Adapter Digital Camera 35mm Lens Adapters Computar C Mount 55mm Telecentric Lens Sony E Mount Lens Fe Or F Adaptador Montura Sony A Sony E T-ring Adapter For Sony Alpha